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31092974223 = 3531109176333
BaseRepresentation
bin11100111101010010…
…010010001010001111
32222020220220202010220
4130331102102022033
51002134300133343
622141154202423
72150340630423
oct347522221217
988226822126
1031092974223
111220619a813
126038b83413
132c16955bcc
14170d678b83
15c1ea73183
hex73d49228f

31092974223 has 16 divisors (see below), whose sum is σ = 42277839840. Its totient is φ = 20319089024.

The previous prime is 31092974207. The next prime is 31092974233. The reversal of 31092974223 is 32247929013.

It is a Cunningham number, because it is equal to 1763322-1.

It is a cyclic number.

It is not a de Polignac number, because 31092974223 - 24 = 31092974207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31092974233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88165 + ... + 264497.

It is an arithmetic number, because the mean of its divisors is an integer number (2642364990).

Almost surely, 231092974223 is an apocalyptic number.

31092974223 is a deficient number, since it is larger than the sum of its proper divisors (11184865617).

31092974223 is a wasteful number, since it uses less digits than its factorization.

31092974223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177498.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 31092974223 in words is "thirty-one billion, ninety-two million, nine hundred seventy-four thousand, two hundred twenty-three".

Divisors: 1 3 53 159 1109 3327 58777 176331 176333 528999 9345649 28036947 195553297 586659891 10364324741 31092974223